The fact that you're pointing it to PyTorch code in the first place is being specific.

Pointing a frontier model to a 10 or 100MLoC codebase and saying "make this code fast, make no mistakes" doesn't work. As an experiment I recently tried this with a relative small (500KLoC) codebase and it got stuck on believing that the primary cause of slowdown was the database not using a connection pool. (Which was completely irrelevant for this specific code.)